EX13, EX17, EX21 Engine Parts Manual - How to Use This Manual - Product Number Identification

Oct 29, 2026

Manual for Robin 4-cycle engines covering EX13, EX17 and EX21 engine parts identification and parts ordering. Explains how engines are identified by model, specification, and code number, and how the specification and code combine into a 15-digit product number label. Provides instruction on manual layout elements including section names, FIG. numbers, reference numbers, subassembly notation, part numbers, descriptions, quantities, remarks, and the FROM-TO code history for part improvements and interchangeability.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages28

Reading Time1 h 11 min

AccessFree to download

HOW TO USE THIS MANUAL

Engine identification by model/specification/code

Product number label and 15-digit format

MANUAL LAYOUT

Section name and group index

FIG. No., REF. No., subassembly notation

Part number, description, quantity, remarks

FROM-TO code history and interchangeability

GROUP INDEX

Crankcase group

Crankshaft group

Intake and exhaust group

Governor group

Cooling and starting group

Fuel and lubricant group

Carburetor group

Electric device group

Accessory group

SECTION 1 CRANKCASE GROUP

Figure 100 and parts table columns

PARTS MANUAL Models EX13, EX17, EX21 ENGINE Original Robin engine parts manual EX13 EX17 EX21 [Download from www.robin-power.com](Download from www.robin-power.com) HOW TO USE THIS MANUAL Robin engines are identiﬁed by MODEL, SPECIFICATION, and CODE NUMBER. For each model there may be many different versions called speciﬁcations. Each speciﬁcation will be unique in some way. The difference may only be the paint color or it may have a different typeof PTO or some other signiﬁcant difference. In order the identify the correct service part number, it is important to conﬁrm the speciﬁcation and code numbers for your engine. The speciﬁcation and code number together are know as the PRODUCT NUMBER. All Robin 4 cycle engines have a Product Number label similar to the label illustrated below. The Product Number Label has a 15 digit alphanumeric string that consists of the SPECIFICATION (SPEC) number (11 digits) and the CODE number (4 digits) . Please note the illustration below: E X 1 3 0 X X X X SPEC NO. (11 digits) CODE NO. (4 digits) PRODUCT NO. (15 digits) EX13, EX17, EX21 -3- 02-03 Original Robin engine parts manual EX13 EX17 EX21 [sales@solrisen.com](sales@solrisen.com) [Download from www.robin-power.com](Download from www.robin-power.com) MANUAL LAYOUT |
1 ~~ ~~ 4
2 3
| | --- | |
1 ~~ ~~
35
4

6

2

| 1. SECTION NAME Parts are broadly classiﬁed according to their functions. Refer to the Group Index (table of contents) for respective section name. 2. FIG. No. The FIG. number indexes the reference and part numbers to the illustration. Figure numbers that vary only in the tens place (i.e..: 700 and 710) are in a group of the same section (i.e..:Electrical Device Group) . 3. REF. No . The Reference number identiﬁes the part illustration with the corresponding part number in the part list. 4. SUBASSEMBLY SUBASSEMBLY parts of part assembly are listed below the assembly part. The subassembly part reference number is indicated by the number led by "-" such as "-1", "-2". 5. PART NUMBER It is the number assigned for sales unit. Use the PART No. when making an order. 6. DESCRIPTION It is designation of the part. 7. QTY. Quantity of each part used for each product. 8. REMARKS This gives a distinctive feature and/or a supplementary comment for the type, the speciﬁcation, and the part concerned. It also shows part number(s) interchangeable for the part. 9. FROM-TO This section shows [the CODE No. to](the CODE No. to) indicate the history of progress in which improved parts have been introduced in the product. The FROM-TO CODE No. helps to identify PART No. being employed in the product concerned. See the examples below: - The part is used in the product irrespective of CODE No. 2101- The part is used in the products with CODE No. of 2101 and after this number. -2100 The part is used in the products with CODE No. of 2100 and before this number. EX13, EX17, EX21 -4- 02-03 Original Robin engine parts manual EX13 EX17 EX21 [sales@solrisen.com](sales@solrisen.com) [Download from www.robin-power.com](Download from www.robin-power.com) GROUP INDEX Group Name Page CRANKCASE GROUP ............................................................................... 6 CRANKSHAFT GROUP ............................................................................. 8 INTAKE and EXHAUST GROUP.............................................................. 10 GOVERNOR GROUP .............................................................................. 14 COOLING and STARTING GROUP ......................................................... 16 FUEL, LUBRICANT GROUP .................................................................... 20 CARBURETOR GROUP .......................................................................... 22 ELECTRIC DEVICE GROUP .................................................................. 24 ACCESS

FAQs

How are Robin engines identified for correct service part selection?

Robin engines are identified by model, specification, and code number. The correct service part number requires confirming the specification and code numbers for the engine.

What is the product number and how is it formed?

For Robin 4-cycle engines, the product number label contains a 15-digit alphanumeric string. It consists of the 11-digit specification (SPEC) number and the 4-digit code (CODE) number.

What do FIG. No., REF. No., and SUBASSEMBLY indicate in the manual layout?

FIG. No. indexes reference and part numbers to the illustration, and FIG groups share the same section for variations in the tens place. REF. No. identifies the part illustration tied to the part list, while subassembly references use numbers led by a dash (e.g., -1, -2).

How does the FROM-TO column work when ordering or matching parts?

FROM-TO shows the code number range indicating when improved parts were introduced. Examples describe parts used regardless of code, parts introduced for codes and after, and parts used before a particular code number to help identify the appropriate part number.

Oct 29, 2026

Upload by Aria Callaghan